| check_if_table_exists | Check if a database table exists. |
| close_connection | close_connection helper function |
| combine_stats | Combine aggregated statistics. |
| db_connection | db_connection helper function |
| get_config_env | get_config_env helper function |
| get_db_systems | Quickly get all currently implemented database systems |
| get_default_config_elements | Get default element names (suffixes) for env reading |
| query_database | query_database helper function |
| xml_2_json | Quickly transform a xml objet into a json object. |